Some think it is a hardware issue and has nothing to do with the software while others are blaming the latter.
Apple MacBook Pro users have made their presence felt in almost every major online forum with complaints of crackling sound on their latest 2018 devices.
Both, he 13-inch and 15-inch models have been affected by this issue. The sound distortion in Apple MacBook Pro is not limited to when you play the music on the speakers. The 3.5mm headphone jack when plugged also makes similar sounds. The problem does not go away by adjusting the frequency or volume of the speaker.
Some customers have complained about the crackling sound when tuned-in to Apple Music or iTunes on high volumes while some say that the crackling persists while watching YouTube videos as well. Users also seem to have their own theories about what might be wrong. Some think it is a hardware issue and has nothing to do with the software while others are blaming the latter.